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OpenAPI Specification

openapi: 3.2.0
info:
  title: Gnosem MCP API
  version: 0.1.0
  summary: Cross-vendor AI memory over MCP.
  description: Gnosem is a hosted Model Context Protocol server providing one persistent semantic memory store per user, accessible from every MCP-capable AI client. This spec covers the REST surface. The MCP JSON-RPC endpoint (POST /mcp) exposes 6 tools — memory_write, memory_search, memory_list, memory_forget, memory_supersede, memory_write_bulk — documented in /llms.txt and /.well-known/mcp/server-card.json.
  contact:
    name: CUETV LLC
    url: https://cuetv.us
  license:
    name: MIT
    identifier: MIT
servers:
- url: https://gnosem.dev
  description: Production
security:
- bearerAuth: []
tags:
- name: MCP
paths:
  /mcp:
    post:
      summary: Model Context Protocol JSON-RPC 2.0 endpoint
      description: 'Exposes 6 tools via JSON-RPC: memory_write, memory_search, memory_list, memory_forget, memory_supersede, memory_write_bulk. The initialize, tools/list, ping, and notifications/initialized methods do NOT require auth (registry scanners use them). tools/call REQUIRES auth. Per-tool schemas are exposed via tools/list and via /.well-known/mcp/server-card.json.'
      security:
      - bearerAuth: []
      - {}
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JsonRpcRequest'
      responses:
        '200':
          description: JSON-RPC response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonRpcResponse'
        '400':
          description: Malformed JSON or missing jsonrpc:2.0.
        '413':
          description: Request body over 256KB cap.
      tags:
      - MCP
      operationId: postMcp
      x-operation-id-source: derived
components:
  schemas:
    JsonRpcRequest:
      type: object
      required:
      - jsonrpc
      - id
      - method
      properties:
        jsonrpc:
          type: string
          const: '2.0'
        id:
          oneOf:
          - type: string
          - type: integer
          - type: 'null'
        method:
          type: string
          description: 'One of: initialize, tools/list, tools/call, ping, notifications/initialized'
        params:
          type: object
    JsonRpcResponse:
      type: object
      required:
      - jsonrpc
      - id
      properties:
        jsonrpc:
          type: string
          const: '2.0'
        id:
          oneOf:
          - type: string
          - type: integer
          - type: 'null'
        result:
          type: object
        error:
          type: object
          properties:
            code:
              type: integer
            message:
              type: string
            data: {}
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: gn_[a-f0-9]{32}
      description: 'Every user gets an API key on signup formatted as `gn_` + 32 hex characters. Pass as `Authorization: Bearer <key>` on every authenticated request.'